From: "gurchetansi...@chromium.org" <gurchetansi...@chromium.org>
This is the SSBO analogue to fe0647. User supplied data must
be a multiple of GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT.
This fixes 44 GLES31 tests on airlied@'s GLES31 sketch branches with
Nvidia hardware, but this patch standalone can applied to master. The
alignment restriction on Nvidia is 32, hence the default value.
Example tests:
dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.0
dEQP-GLES31.functional.ssbo.layout.multi_basic_types.single_buffer.std430
---
src/gallium/drivers/virgl/virgl_hw.h | 1 +
src/gallium/drivers/virgl/virgl_screen.c | 1 +
src/gallium/drivers/virgl/virgl_winsys.h | 1 +
3 files changed, 3 insertions(+)
diff --git a/src/gallium/drivers/virgl/virgl_hw.h
b/src/gallium/drivers/virgl/virgl_hw.h
index 93849c03ddd..624be3b271d 100644
--- a/src/gallium/drivers/virgl/virgl_hw.h
+++ b/src/gallium/drivers/virgl/virgl_hw.h
@@ -286,6 +286,7 @@ struct virgl_caps_v2 {
int32_t max_texture_gather_offset;
uint32_t texture_buffer_offset_alignment;
uint32_t uniform_buffer_offset_alignment;
+ uint32_t shader_buffer_offset_alignment;
};
union virgl_caps {
diff --git a/src/gallium/drivers/virgl/virgl_screen.c
b/src/gallium/drivers/virgl/virgl_screen.c
index 02613f18663..886ea196bdd 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -228,6 +228,7 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap
param)
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
+ return vscreen->caps.caps.v2.shader_buffer_offset_alignment;
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
diff --git a/src/gallium/drivers/virgl/virgl_winsys.h
b/src/gallium/drivers/virgl/virgl_winsys.h
index 99e98ad9c9c..c36b957abad 100644
--- a/src/gallium/drivers/virgl/virgl_winsys.h
+++ b/src/gallium/drivers/virgl/virgl_winsys.h
@@ -134,5 +134,6 @@ static inline void virgl_ws_fill_new_caps_defaults(struct
virgl_drm_caps *caps)
caps->caps.v2.max_texture_gather_offset = 7;
caps->caps.v2.texture_buffer_offset_alignment = 32;
caps->caps.v2.uniform_buffer_offset_alignment = 256;
+ caps->caps.v2.shader_buffer_offset_alignment = 32;
}
#endif
--
2.13.5
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